Disposable insole pad

ABSTRACT

A disposable insole pad includes an absorbent layer, a removable skin adhesive, a first release liner, and an anti-slip member. The removable skin adhesive is attached to the top surface of the absorbent layer, and the anti-slip member is attached to the bottom surface of the absorbent layer. The removable skin adhesive is intended to be removably attached to a user&#39;s foot, and a first release liner is provided to cover the removable adhesive. The user wears the present invention by removing the first release liner and attaching his foot to the removable skin adhesive, and then, he wears a shoe such that the anti-slip member is to be in contact with a shoe insole.

FIELD OF THE INVENTION

The present invention relates to a disposable insole pad, and more particularly, a thin disposable insole pad that is removably attachable to a user's foot and placed between the user's foot and a footwear insole.

BACKGROUND OF THE INVENTION

Insole or footbed is often disposed a top of the sole of footwear to be in contact with a foot to provide warmth, comfort, or support of the foot's structure (e.g. arch support). An insole can be a fixed inner sole or a removable sole. It is usually made of synthetic material, rubber, silicone, plastics, leathers, gels, or fabrics, and thus, it is relatively thick and placed inside of the footwear for relatively extended period of time without washing.

Insoles are generally not adapted to the problem of sweating or odor caused by the foot. Insoles are typically thick, and even when washable, they are not washed frequently, which exacerbates such problems that often result in bacterial or microbes growth, which leads to sticky, odor-filled, and unhygienic footwear. Furthermore, washing an insole is time consuming and inconvenient. Sometimes, an insole has to be hand washed. Sometimes, insoles are made from non-washable materials, and thus, washing can damage or destroy them. Besides, wearing footwear barefooted or without socks has become a fashion trend and, accordingly, conventional thick insoles are not well suited for such times.

Therefore, to solve the above problems, a thin disposable insole pad, which is removably attachable to a user's foot, is provided, as there is a need for a device that accomplishes this goal. This invention is directed to solve these problems and satisfy the long-felt need.

SUMMARY OF THE INVENTION

The present invention contrives to solve the disadvantages of the prior art. The present invention provides a disposable insole pad that is removably attachable to a user's foot and placed between the user's foot and a footwear insole.

The object of the invention is to provide a disposable insole pad 100 which includes an absorbent layer 10, a removable skin adhesive 20, a first release liner 30, and an anti-slip member 40. The removable skin adhesive 20 is attached to the top surface 12 of the absorbent layer 10, and the anti-slip member 40 is attached to the bottom surface 14 of the absorbent layer 10. The removable skin adhesive 20 is intended to be removably attached to a user's foot, and a first release liner 30 is provided to cover the removable adhesive 20. The user wears the present invention 100 by removing the first release liner 30 and attaching his foot to the removable skin adhesive 20, and then, he wears a shoe such that the anti-slip member 40 is to be in contact with a shoe insole.

Another object of the invention is to provide a disposable insole pad 100 which includes an absorbent layer 10, an anti-slip member 40, a release liner 50, and a toe cap 60. The anti-slip member 40 is attached to the bottom surface 14 of the absorbent layer 10 so that the anti-slip member 40 is to be in contact with a shoe insole. The release liner 50 covers the anti-slip member 40. The toe cap 60 covers toes of a user and it is made of cotton gauze and attached to the absorbent layer 10. The adhesive 62 is attached to an outer surface of the toe cap 60. The disposable insole pad 100 may or may not include a removable skin adhesive 20 attached to the top surface 12 of the absorbent layer 10.

Yet another object of the invention is to provide a disposable insole pad 100 which includes an absorbent layer 10, first and second side attachment parts 25, 26, and a heel attachment part 27. The first and second side attachment parts 25, 26 are extended from the absorbent layer 10 toward opposite sides of the absorbent layer 10 for being respectively attached to opposite sides of the user's foot. The heel attachment part 27 is extended from the absorbent layer for being attached to a heel of the user's foot.

The advantages of the present invention are: (1) the insole pad of the present invention is thin and disposable and can effectively absorb a large amount of liquid or sweat, and thus, it is sanitary and hygienic; (2) the insole pad of the present invention is thin and attachable to the bottom of the foot, and thus, it is well suited for the fashion trends of today where wearing footwear (e.g. high heel, boat shoes, walking shoes, and the like) barefoot or without socks is preferred at least without any outward appearance of socks; (3) antibacterial agents, antimicrobials, and/or deodorizers are added to the absorbent layer, and thus, the present invention prevents or reduce bacterial or microbial growth, which removes foul odor inside the footwear; (4) the size of the present invention can be adjusted by cutting toe or hill-end of the present invention; (5) the present invention is thin and foldable, and thus, not only making it easy to stack and transport but also reducing transportation costs; (6) first and second side attachments parts and the heel attachment part can effectively hold the present invention to the user's foot; (7) first and second side attachments parts and the heel attachment part can protect the user's foot from injury; (8) first and second side attachments parts and the heel attachment part are transparent and suitable for wearing shoes barefoot or without socks; and (9) the present invention has a simple but effective structure, which reduces manufacturing costs.

Although the present invention is briefly summarized, the fuller understanding of the invention can be obtained by the following drawings, detailed description and appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects and advantages of the present invention will become better understood with reference to the accompanying drawings, wherein:

FIG. 1 shows a disposable insole pad according to one embodiment of the present invention;

FIG. 2 shows an exploded view of the disposable insole pad according to one embodiment of the present invention;

FIG. 3 shows a partially exploded view of the disposable insole pad according to one embodiment of the present invention;

FIG. 4 shows a cross-sectional view of the disposable insole pad according to one embodiment of the present invention;

FIGS. 5A and 5B show top and bottom views of the disposable insole pad according to one embodiment of the present invention;

FIG. 6 shows a perspective view of the disposable insole pad according to another embodiment of the present invention;

FIG. 7 shows an exploded view of the disposable insole pad according to another embodiment of the present invention as in FIG. 6 ;

FIG. 8 shows a cross-sectional view of the disposable insole pad according to one embodiment of the present invention as in FIG. 6 ;

FIG. 9 shows an exploded view of the disposable insole pad according to still another embodiment of the present invention;

FIGS. 10A and 10B show top and bottom views of the disposable insole pad according to still another embodiment of the present invention as in FIG. 9 ;

FIG. 11 shows a disposable insole pad according to still another embodiment of the present invention; and

FIG. 12 shows a side view of the disposable insole pad according to still another embodiment of the present invention as in FIG. 11 .

DETAILED DESCRIPTION OF EMBODIMENTS OF THE INVENTION

Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, which form a part of this disclosure. It is to be understood that this invention is not limited to the specific devices, methods, conditions or parameters described and/or shown herein, and that the terminology used herein is for the purpose of describing particular embodiments by way of example only and is not intended to be limiting of the claimed invention.

Also, as used in the specification including the appended claims, the singular forms “a”, “an”, and “the” include the plural, and reference to a particular numerical value includes at least that particular value, unless the context clearly dictates otherwise. Ranges may be expressed herein as from “about” or “approximately” one particular value and/or to “about” or “approximately” another particular value. When such a range is expressed, another embodiment includes from the one particular value and/or to the other particular value. Similarly, when values are expressed as approximations, by use of the antecedent “about”, it will be understood that the particular value forms another embodiment.

An insole or footbed refers to a top of the sole that is in contact with a foot. The insole can be a fixed inner sole of footwear or a removable sole worn in footwear. Accordingly, a shoe insole includes a removable sole, fixed sole, or just the part of a shoe which contacts and supports a foot.

Footwear means shoes which are outer coverings for the feet such as high heels, boat shoes, walking shoes, sandals, slippers, crocs, flip-flops, sneakers, sports shoes, gym shoes, walking shoes, shoes, crocs, boots, etc. Footwear further includes men, women or children's footwear such as heels, mules, clogs, crocs, flat shoes, loafers, boat shoes, golf shoes, trainers, walking shoes, ballet flats, lace ups, espadrilles, slip-ons, sneakers, flip-flops, sandals, boots, etc.

FIGS. 1-4, 5A, and 5B show an embodiment of the present invention. FIG. 2 shows an exploded view of one embodiment of the present invention. The disposable insole pad 100 includes an absorbent layer 10, a removable skin adhesive 20, a first release liner 30, and an anti-slip member 40. The absorbent layer 10 has a top surface 12 and a bottom surface 14. The removable skin adhesive 20 is attached to the top surface 12 of the absorbent layer 10, and the anti-slip member 40 is attached to the bottom surface 14 of the absorbent layer 10. The removable skin adhesive 20 is intended to be removably attached to a user's foot, and a first release liner 30 is provided to cover the removable adhesive 20. The user wears the present invention 100 by removing the first release liner 30 and attaching his foot to the removable skin adhesive 20, and then, he wears a shoe such that the anti-slip member 40 is to be in contact with a shoe insole (not shown). The shoe insole is the part of the shoe which contacts and supports the user's foot.

Preferably, the absorbent layer 10 is constructed to be very thin and flexible, but still have the capacity to absorb a large amount of liquid or sweat. The removable skin adhesive 20 is preferably a hypoallergenic medical grade tape. As in FIG. 1 , the hypoallergenic medical grade tape 20 is attached to a plurality of locations on the top surface 12 of the absorbent layer 10, and each dot-shaped tape is about 1-3 mm in size.

The removable skin adhesive 20 is an adhesive which can be attached to skin and removed from skin without causing injury. Preferably, the skin adhesive 20 is a medical-grade adhesive such as skin tape, double sided tape for skin, etc. Since the disposable insole pad 100 utilizes the skin adhesive 20 intended to be attached to a foot, the disposable insole pad 100 is intended to be used for wearing shoes barefooted or without socks. Still, the skin adhesive 20 can be attached to a sock as well and the user can wear socks and shoes which using the disposable insole pad 100. Accordingly, the insole pad 100 can be used for a variety of fits and styles notwithstanding the current fashion trends.

Preferably, the anti-slip member 40 is flexible and made of silicon rubber which prevents slippage of the disposable insole pad 100 especially when pressed by the user's foot. The anti-slip member 40 may be made of any other flexible material as long as it prevents slippage of the disposable insole pad 100. In one embodiment, the anti-slip member 40 may include a plurality of silicone rubber strips that extend from the user's toe to the heel as shown in FIG. 2 . The width of each strip is about 3-5 mm. Alternatively, the anti-slip member 40 may be formed into a layer which covers substantially all of the bottom surface 14 of the absorbent layer 10. In still another alternative, the anti-slip member 40 may include a plurality of silicon rubber dots of 2-3 mm in size that are dispersed on the bottom surface 14 of the absorbent layer 10.

The disposable insole pad 100 of the present invention may further include a second release liner 50 for covering the anti-slip member 40. The second release liner 50 may include dotted cutting lines 52 to indicate different sizes of the disposable insole pad 100. The user can cut the disposable insole pad 100 by selecting one of the dotted cutting lines 52 for an intended size and cutting along the line 52 using a cutter, scissors, razor blade, or the like. The dotted cutting lines 52 may be formed on the toe side or heel side of the disposable insole pad 100. Instead of dotted lines, solid lines may be used, and sizes may be printed on the release liner 50 right next to each line 52 to indicate the intended size represented by each line 52.

The absorbent layer 10 is preferably made of cotton gauze, TCF (Totally Chlorine Free) pulp, pressed cotton pulp, plant based pulp, or cellulose pulp. Antibacterial agents and/or deodorizers may be added to the absorbent layer 10 to prevent bacterial or microbial growth and/or to eliminate or reduce offensive odor or smell. Examples of such antibacterial agents or deodorizers include plant extracts such as Curcuma longa, cinnamon, green tea, persimmon, etc. Charcoal may be used as an antibacterial agent or deodorizer. Antibacterial agents and/or deodorizers may be added to the absorbent layer 10 in the form of liquid or powder, or the absorbent layer 10 may be coated with a layer of antibacterial agents and/or deodorizers.

In one embodiment, the absorbent layer 10 may be made of a superabsorbent polymer. A superabsorbent polymer is a water-absorbing polymer that can absorb and retain extremely large amounts of liquid while not adding excessive bulk or thickness to the absorbent layer 10.

In one embodiment, the absorbent layer 10 may include multiple layers, having at least a top layer and a bottom layer (not shown). The top layer may be made of cotton gauze sheet, pure cotton cover, terry cotton, ribbed cotton, or synthetic fiber sheet, and the bottom layer may be made of cotton gauze, TCF (Totally Chlorine Free) pulp, pressed cotton pulp, cellulose pulp, plant based pulp, or superabsorbent polymer. The top layer is in contact with a foot and constructed to transfer user's sweat to the bottom layer.

The disposable insole pad 100 as shown in FIG. 2 may further include a toe cap 60, which is shown in FIG. 6 . The toe cap 60 covers user's toes. It is preferably made of thin cotton gauze and attached to the absorbent layer. An adhesive 62 such as double-sided tape may be attached to the outer surface of the toe cap 60 such that the toe cap 60 is removably attached to footwear.

The disposable insole pad 100 is constructed to be flexible and can be folded along about the dotted lines 72 indicated in FIGS. 3, 5A, and 5B. Accordingly, the disposable insole pad 100 is foldable, which enables a plurality of the disposable insole pads 100 to be stacked together for compact storage and efficient transportation.

The first release liner 30 may be made of film or paper to prevent the removable skin adhesive 20 from adhering prematurely to an unintended object. The second release liner 50 may made of film or paper as well to prevent the anti-slip member 40 from being less functional. The release liners 30, 50 may be made of polypropylene, cotton pulp paper, etc. Adhesive bond strength between the removable skin adhesive 20 and the absorbent layer 10 is stronger than adhesive bond strength between the removable skin adhesive 20 and the first release liner 30.

FIGS. 6-8 show alternative embodiment of the present invention. The disposable insole pad 100 includes an absorbent layer 10, an anti-slip member 40, a release liner 50, and a toe cap 60. The absorbent layer 10 has a top surface 12 and a bottom surface 14. The anti-slip member 40 is attached to the bottom surface 14 of the absorbent layer 10 so that the anti-slip member 40 is to be in contact with a shoe insole. The release liner 50 covers the anti-slip member 40. The toe cap 60 covers toes of a user and it is made of cotton gauze and attached to the absorbent layer 10. The adhesive 62 is attached to an outer surface of the toe cap 60. The disposable insole pad 100 is foldable for stacking and compact storage.

The disposable insole pad 100 may or may not include a removable skin adhesive 20 attached to the top surface 12 of the absorbent layer 10. If the removable skin adhesive is provided, then, the disposable insole pad 100 further includes a release liner 30 for covering the removable adhesive 20.

The anti-slip member 40 may include a plurality of silicon rubber strips that are substantially extended from a toe to a heel of the user. The width of each strip is about 3-5 mm. Alternatively, the anti-slip member 40 may be formed into a layer as shown in FIG. 6 , which covers substantially all bottom surface 14 of the absorbent layer 10. In still another alternative, the anti-slip member 40 may include a plurality of silicon rubber dots of 2-3 mm in size, which are distributed uniformly or non-uniformly on the bottom surface 14 of the absorbent layer 10.

The absorbent layer 10 may be made of cotton gauze, TCF (Totally Chlorine Free) pulp, pressed cotton pulp, cellulose pulp, or plant based pulps. Antibacterial agents and/or deodorizers may be added while making the absorbent layer 10, or the absorbent layer 10 may be coated with antibacterial agents and/or deodorizers.

The absorbent layer 10 may comprise at least two layers of a top layer and a bottom layer. The top layer may be made of cotton gauze sheet, pure cotton cover, terry cotton, ribbed cotton, or synthetic fiber sheet. The bottom layer may be made of cotton gauze, TCF (Totally Chlorine Free) pulp, pressed cotton pulp, cellulose pulp, plant based pulp, or superabsorbent polymer.

Additionally, dotted cutting lines 52 may be formed on the release liner 50 on the heel side or toe side of the disposable insole pad 100. Because of the toe cap 60, it is preferably to form the dotted cutting lines 52 on the heel side.

FIGS. 9, 10A, and 10B show still alternative embodiment of the present invention. The disposable insole pad 100 includes a foot contact layer 15, an absorbent layer 10, an adhesive layer 80, and a release liner 90. The foot contact layer 15 may be made of cotton gauze and the absorbent layer 10 may be mad of pressed cotton pulp or TCF pulp. The adhesive layer 80 is to removably attach the disposable insole pad 100 to a shoe insole. Alternatively, the foot contact layer 15 may be made of synthetic fiber and the absorbent layer 10 may be mad of pressed cotton pulp or TCF (Totally Chlorine Free) pulp.

In another embodiment, the disposable insole pad 100 may not have the foot contact layer 15, and it only includes an absorbent layer 10, an adhesive layer 80, and a release liner 90. The absorbent layer 10 may be made of ribbed cotton, terry cotton, pressed cotton pulp, plant based pulp, or TCF pulp.

FIGS. 11 and 12 show still alternative embodiment of the present invention. The disposable insole pad 100 may include an absorbent layer 10, first and second side attachment parts 25, 26, and a heel attachment part 27. The absorbent layer 10 has a top surface 12 and a bottom surface 14, and the absorbent layer 10 is constructed to cover substantially whole bottom of a user's foot. As shown in FIG. 11 , the first and second side attachment parts 25, 26 are extended from the absorbent layer 10 toward opposite sides of the absorbent layer 10 for being respectively attached to opposite sides of the user's foot. A removable skin adhesive is applied or attached to top surfaces of the first and second side attachment parts such that the first and second side attachment parts 25, 26 can be removably attached to sides of the user's foot. Preferably, the first and second side attachment parts 25, 26 are extended from the absorbent layer 10 to respectively cover inner big toe mound and outer little toe mound of the user's foot. The inner big toe mound and the outer little toe mound are outermost areas in sides of the user's foot, and if the first and second side attachment parts 25, 26 are respectively attached to the inner big toe mound and outer little toe mound, the attachment strength between the disposable insole pad 100 and the user's foot will be very strong, and additionally, the first and second side attachment parts 25, 26 can protect the inner big toe mound and outer little toe mound from injury. The inner big toe mound and outer little toe mound from injury are vulnerable for injury.

The heel attachment part 27 is extended from the absorbent layer for being attached to a heel of the user's foot, and the removable skin adhesive is applied or attached to a top surface of the heel attachment part 27. The first and second side attachment parts 25, 26, and the heel attachment part 27 can effectively hold the disposable insole pad 100 to the user's foot. Additionally, the heel attachment part 27 can protect the upper heel of the user's foot which is vulnerable for injury.

A removable skin adhesive 20 may or may not be attached to the top surface 12 of the absorbent layer 10. Such removable skin adhesive 20 is to be removably attached to the bottom of the user's foot. Together with the first and second side attachment parts 25, 26, and the heel attachment part 27, the removable skin adhesive 20 can increase the bonding strength between the disposable insole pad 100 and the user's foot.

Preferably, the first and second side attachment parts 25, 26 are transparent, and the heel attachment part 27 is transparent as well to accommodate the fashion need of wearing shoes barefoot or without socks. The removable skin adhesive is transparent as well, and thus, the first and second side attachment parts 25, 26, and the heel attachment part 27 are not visible.

In alternative embodiment, the absorbent layer 10 may be further extended to cover a heel of the user's foot as shown in FIG. 11 , and the heel attachment part 27 may be further extended from the extended absorbent layer 16 for being attached to upper part of the user's heel.

Furthermore, the disposable insole pad 100 may further include the removable skin adhesive 20 attached to the top surface 12 of the absorbent layer 10 such that the removable skin adhesive 20 is to be removably attached to the bottom of the user's foot. The disposable insole pad 100 may include a first release liner 30 for covering the removable adhesive 20 and an anti-slip member 40 attached to the bottom surface 14 of the absorbent layer 10. The anti-slip member 40 is to be in contact with a shoe insole after the first release liner 30 is removed and the first and second side attachment parts 25, 26, the heel attachment part 27, and the removable skin adhesive 20 are attached to the user's foot. The disposable insole pad 100 may further include a second release liner 50 for covering the anti-slip member 40.

While the invention has been shown and described with reference to different embodiments thereof, it will be appreciated by those skilled in the art that variations in form, detail, compositions and operation may be made without departing from the spirit and scope of the invention as defined by accompanying claims. 

What is claimed is:
 1. A disposable insole pad, comprising: an absorbent layer, including a top surface and a bottom surface; a removable skin adhesive attached to the top surface of the absorbent layer, wherein the removable skin adhesive is to be removably attached to a user's foot; a first release liner for covering the removable adhesive; and an anti-slip member attached to the bottom surface of the absorbent layer wherein the anti-slip member is to be in contact with a shoe insole after the first release liner is removed and the removable skin adhesive is attached to the user's foot.
 2. The disposable insole pad of claim 1, wherein the removable skin adhesive is a hypoallergenic medical grade tape wherein the hypoallergenic medical grade tape is attached to a plurality of locations on the top surface of the absorbent layer.
 3. The disposable insole pad of claim 2, wherein the anti-slip member comprises a plurality of silicone rubber strips which are substantially extended from a toe to a heel of the user.
 4. The disposable insole pad of claim 1, further comprising a second release liner for covering the anti-slip member.
 5. The disposable insole pad of claim 4, the second release liner includes a dotted cutting line.
 6. The disposable insole pad of claim 1, wherein the absorbent layer is made of cotton gauze, TCF (Totally Chlorine Free) pulp, pressed cotton pulp, cellulose pulp, plant based pulp, or superabsorbent polymer.
 7. The disposable insole pad of claim 6, wherein the absorbent layer either includes an antibacterial agent or deodorizer, or is coated with an antibacterial agent or deodorizer.
 8. The disposable insole pad of claim 1, wherein the absorbent layer further includes a top layer and a bottom layer, wherein the top layer is made of cotton gauze sheet, pure cotton cover, terry cotton, ribbed cotton, or synthetic fiber sheet, and wherein the bottom layer is made of cotton gauze, TCF (Totally Chlorine Free) pulp, pressed cotton pulp, cellulose pulp, plant based pulp, or superabsorbent polymer.
 9. The disposable insole pad of claim 1, further comprising a toe cap for covering toes of the user, wherein the toe cap is made of cotton gauze, wherein the toe cap is attached to the absorbent layer, and wherein an adhesive is attached to an outer surface of the toe cap.
 10. The disposable shoe pad of claim 1, wherein the disposable insole pad is foldable.
 11. A disposable insole pad, comprising: an absorbent layer, including a top surface and a bottom surface; an anti-slip member attached to the bottom surface of the absorbent layer wherein the anti-slip member is constructed to be in contact with a shoe insole; a release liner for covering the anti-slip member; and a toe cap for covering toes of a user, wherein the toe cap is made of cotton gauze, wherein the toe cap is attached to the absorbent layer, wherein an adhesive is attached to an outer surface of the toe cap, and wherein the disposable insole pad is foldable.
 12. The disposable insole pad of claim 11, wherein the anti-slip member comprises a plurality of silicon rubber strips which are substantially extended from a toe to a heel of the user.
 13. The disposable insole pad of claim 11, wherein the absorbent layer is made of cotton gauze, TCF (Totally Chlorine Free) pulp, pressed cotton pulp, cellulose pulp, or plant based pulp.
 14. The disposable insole pad of claim 13, wherein the absorbent layer further includes an antibacterial agent or deodorizer.
 15. The disposable insole pad of claim 13, wherein the absorbent layer is coated with an antibacterial agent or deodorizer.
 16. The disposable insole pad of claim 11, wherein the absorbent layer further includes a top layer and a bottom layer, wherein the top layer is made of cotton gauze sheet, pure cotton cover, terry cotton, ribbed cotton, or synthetic fiber sheet, and wherein the bottom layer is made of cotton gauze, TCF (Totally Chlorine Free) pulp, pressed cotton pulp, cellulose pulp, plant based pulp, or superabsorbent polymer.
 17. A disposable insole pad, comprising: an absorbent layer, including a top surface and a bottom surface whereas the absorbent layer is constructed to cover substantially whole bottom of a user's foot; first and second side attachment parts, which are extended from the absorbent layer toward opposite sides of the absorbent layer for being respectively attached to opposite sides of the user's foot, wherein a removable skin adhesive is attached to top surfaces of the first and second side attachment parts; and a heel attachment part, which is extended from the absorbent layer for being attached to a heel of the user's foot, wherein the removable skin adhesive is attached to a top surface of the heel attachment part.
 18. The disposable insole pad of claim 17, wherein the first and second side attachment parts are transparent, and the heel attachment part is transparent.
 19. The disposable insole pad of claim 18, wherein the absorbent layer is extended to cover a heel of the user's foot, and the heel attachment part is further extended therefrom for being attached to upper part of the user's heel.
 20. The disposable insole pad of claim 19, further comprising: the removable skin adhesive attached to the top surface of the absorbent layer, wherein the removable skin adhesive is to be removably attached to a user's foot; a first release liner for covering the removable adhesive; and an anti-slip member attached to the bottom surface of the absorbent layer wherein the anti-slip member is to be in contact with a shoe insole after the first release liner is removed and the first and second side attachment parts, the heel attachment part, and the removable skin adhesive are attached to the user's foot. 